Answer:
gravitational force
Explanation:
Gravitational force is the force responsible for firmness while standing.
Greater body size and facial gracility documented in Homo erectus are likely related to changes in tool technology and increasing access to meat and other proteins. Homo erectus walked just like a modern human, with traits like double arches and adducted big toe, they had a cranial capacity range from 650 cc to 1,200 cc.
Answer:
Gastrin: This hormone aids digestion by stimulating certain cells in the stomach to produce acid. Glucagon: Glucagon helps insulin maintain normal blood glucose by working in the opposite way of insulin. It stimulates your cells to release glucose, and this raises your blood glucose levels.
Explanation:
It was plants maintained photothenysis . global oxygen increase very important.but natural do it
C. protein. Nitrogen is a component of amino acids which are the building blocks of protein.